Dose-response relations between Purpureocillium lilacinum PLSAU-1 and Meloidogyne incognita infecting brinjal plant on plant growth and nematode management: a greenhouse study

The efficacy of various doses of Purpureocillium lilacinum PLSAU-1 (P. lilacinum PLSAU-1) was evaluated against brinjal root-knot pathogen, Meloidogyne incognita (M. incognita) at different inoculum levels. Experimental pot soil was treated by four doses (0, 1 × 105, 5 × 105, and 1 × 106 CFU/g soil) of P. lilacinum PLSAU-1 before transplanting, and 5 inoculum levels of M. incognita (0, 100, 400, 800, 1600, and 3200 eggs per 100 cm3 soil) were used after 3 days of brinjal transplantation. A significant correlation was observed between doses of P. lilacinum PLSAU-1 and inoculum densities of M. incognita. Among the doses, the rate of P. lilacinum PLSAU-1 of 1 × 106 CFU/g soil enhanced highly plant growth parameters. Inoculation of M.…